The effects of cementitious materials on the mechanical and durability performance of high-strength concrete
The effects of cementitious materials on the mechanical and durability performance of high-strength concrete
复制标题
DOI：
10.1007/s12205-014-0658-0
复制
发表时间：
2015-07-01
影响因子：
2.2
通讯作者：
Yoon, Young-Soo
中科院分区：
文献类型：
--
作者：
Lee, Joo-Ha;Yoon, Young-Soo
开展了各种试验，重点研究胶凝材料（普通硅酸盐水泥、粉煤灰、矿渣、低热水泥及其组合）的种类和组成对高强混凝土力学性能和耐久性能的影响，为高强混凝土在预应力桥梁中的应用提供试验数据。首先，根据大量试验配合比设计配合比，并考虑其对预应力桥梁的适用性。测定了机械性能，例如压缩强度、弹性模量、劈裂拉伸强度和弯曲强度。还测定了与耐久性相关的性能，例如水合温度、抗氯离子渗透性、抗冻融性、自生和干燥收缩和蠕变性。胶凝材料对高强混凝土各种性能的影响已得到证实。
Various tests, focusing on the effects of the type and composition of cementitious materials (ordinary Portland cement, fly ash, slag, low-heat cement, and their combinations) on the mechanical properties and durability of high-strength concrete, were performed to provide experimental data for the application of high-strength concrete to prestressed bridges. Firstly, mix proportions were designed based on a number of trial mixes, taking into account their applicability to prestressed bridges. Mechanical properties, such as compressive strength, modulus of elasticity, splitting tensile strength and flexural strength, were determined. Durability related properties, such as temperature of hydration, resistance to chloride-ion penetration, resistance to freezing-thawing, autogenous and drying shrinkages and creep, were also determined. The effects of cementitious materials on the various properties of high-strength concrete have been demonstrated.